Washer for wall-anchors.



N. MELLOR. WASHER FOR WALL ANCHOHS. ,urucmou man APR. 28. [914.

1 ,206,57 3. Patented Nov. 28, 1916.

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NORMAN MELLOB, 0F PHILADELPHIA, PENNSYLVANIA.

WASHER r03 WALIi-ANCHORS.

Specification of Letters Patent.

Patented Nov. 28, 1916.

Application filed April 28, 1914. Serial No. 834,966.

anchors of the type described and claimed in the patent to Ira B. Malaby, No. 1,084,458, dated January 13, 1914, for the purpose of preventing the outer end of such an anchor being drawn below the surface of the structure in which it is set or expanded and also for preventing its lateral head projection from rotary movement in or cutting of such structure. These objects and other advantageous ends I secure as hereinafter set forth, reference being had to the accompanying drawings, in which Figure 1 is a perspective view illustrating my invention as applied to a wall anchor; Fig. 2 is a vertical section of a washer constructed according to my invention; Figs. 3 and 4: are side elevations of the washer; Fig. 5 is a plan of the washer on the same scale as that of Fig. 2. and Figs. 6 and 7 are respectively a vertical section and a plan of a slightly modified form of the invention.

It has been found by extensive use of wall anchors of the type above referred to that under certain conditions, for example, when they are employed in walls having a relatively thin layer of plaster, the head or holding projection of the anchor would frequently cut into and break the plaster, without affording material hold and would also disfigure the same by making an opening or hole much larger than was necessary. In order to prevent this action, I provide a washer made in the form of a relatively thin metallic disk. 1, having a central circular opening 2 for the passage of the body and head of the wall anchor and also provided with a relatively narrow recess 3, preferably, though not necessarily, extending tangentially from the opening 2. Both this central opening and the extension 3 are formed by punching downwardly the metal of the disk 1, so that the portion removed from the hole is distributed around their edges, so as to forma more or less regular collar for laterally supporting the upper end 4 of the Wall anchor. This latter has its lower end 5 connected to the top part a by relatlvely weak members 6, there being in addition a tongue 7 projecting over the lower end of the part 5 and perforated to recelve-a screw. The upper end. of the wall anchor has a tangentially extending arm or projection 8 in the form of a narrow tongue and the opening 3 in the disk 1 is designed for its reception. Moreover, in addition to the collar around the central opening of the disk, it is to be noted that the metal from the side extension or that forming one edge thereof is caused to extend down one side and under said opening 3, in order to engage the lower edge of the head projection 8 of the wall anchor to prevent the latter from passing completely through the disk 1, the arrangement being preferably such that when the parts are assembled the top surface of the disk is substantially flush with the upper end of the wall anchor.

When the wall anchor is inserted in a wall and is collapsed, as clearly described in the above mentioned patent, its relatively sharp head pro ection 8 is prevented by the disk or washer 1 from cutting too deeply into the wall and the anchor is also prevented from rotation in its hole or recess by reason of the various projecting parts of the metal pressed out of the openings in the washer, which also holds said anchor from being drawn or forced below the outer face of the wall.

It will also be noted that in addition to tension 8, its more or less pointed parts 10 around the upper end i of the wall anchor also serve to prevent this from passing through the washer or disk in case said anchor should be bent or tilted at an angle to the plane of said washer. In other words, while the pressed out metal tongue 9 which extends under the projection 8 of the wall anchor would effectually prevent passage of the wall anchor in a straight line through the disk, it would not alone retain the anchor in the washer if the former was bent to one side after being inserted. This desirable end is, therefore, obtained by the more or less extended collar provided :around the central opening of the disk or washer by the portions 10 of metal pressed out of said opening, which coact with the metal tongue 9 adjacent the projection 8 to prevent passage cf the wall anchor through the washer even when it is inclined relatively to the plane thereof.

In some cases I so construct the wall anchor that there are two lateral projections 8" from its head end as shown in Fi 7, al-

"though in this case neither of them is as lo as the projection 8 in the other form of my invention. In such a case, it is not necessary to provide a special lateral cut or cuts in the washer 1 for the reception of these projections, for in making such washer I form its central hole, which is designed to receive the wall anchor, by using a tapering punch without a tightly fitting co-acting die. As a result, the hole formed by the punch is not absolutely circular, but is more or less irregular in outline, and the bent down edge portions of the material which provide the collar around the hole, constitute a slightly tapering receptacle for the upper end of the wall anchor. This tapering hole is made of such dimensions that when the anchor is passed into it it can be easily forced into a position in which its upper end is substantially flush with'th'etop surface of the washer and its head projections 8 enter some of the irregular notches in the sides of the hole, although the anchor prevented from passing completely through the washer by reason of the inclination of the dew. vardly bent rough edges 10. Moreover, owing to'the irre ularity of the hole in the washer, the head projections 8 of the wall anchor catch on and are held by the irregular sides of the hole, so that the anchor is also prevented from turning relatively to the Washer.

I claim 1. A washer consisting of a plate of metal having an opening provided with an extension, a part of said washer being extended under said lateral extension to form a support.

2. A washer for a wall anchor consisting, of a metallic plate having a central opening and a lateral extension therefrom, the metal from said central opening being extended substantially at right angles to the plane of the washer to form a collar around the opening and that from the lateral extension being projected under the same but spaced away from the body of the plate.

3. The combination of a wall anchor having a lateral'projection at its head end, and a washer fitting said end and provided with a recess for the reception of the projection of said anchor, said washer having a portion extended under the projection to prevent the wall anchor passing completely through it.

at. The combination of a wall anchor, having a lateral projection and a washer for the head end thereof provided with a lateral extension for said projection; said washer having means for preventing passage of said anchor therethrough beyond a position in which its top surface is substantially flush with the top surface of said washer.

5. The combination of a wall anchor having a lateral projection from its head end; with a washer having a central opening fitting the head end of said wall anchor and provided with a lateral extension from its central recess for the reception of the extension from the wall anchor, the material of the washer being projected under said extension in position to retain the head end of the wall anchor flush with the surface of said washer.

6: The combination of a wall anchor having a tubular head end provided with a lateral extension; a washer having a central opening provided with a flange forming a tubular structure for the reception of the end of the wall anchor and also having a lateral recess "extending from said central opening for the reception of the lateral projection of "the wall anchor; with means for preventing complete passage of the wall anchor through said washer.

7. The combination of a wall anchor having a lateral projection at its head end; with a Washer formed to receive said head end of the anchor and having a recess for the projection thereof placed to hold the anchor from turning. v

8. The combination of a wall. anchor having a lateral projection from its head end; and a washer having an opening for the reception of said end of the anchor, the upper surface of the washer being substantially flush with the top of the anchor andthe edges of the opening therein co-acting with the lateral projection of said anchor to prevent rotation thereof. 7

9. The combination of a washer having a hole, surrounded by a collar formed by downwardly bent portions of the Washer body; and a wall anchor having a lateral projection at its head end fitting into the hole of the washer with said projection coacting with the edges of the hole to prevent rotation of said anchor.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

WILLIAM. E. BRADLEY, WM. A. .BARR.

Copies of this patent may be obtained for five cents each. by addressing the Commissioner 01. Patents.

Washington, D. G. 

